Etymologically

complément

Etymology and origin of the French word complément

Confidence
Established
Formation
Borrowing
First attested
1308 Aimé du Mont-Cassin, Ystoire de li Normant More words from the 14th century
Borrowed from
Latin complementum
Ultimate origin
Latin compleō
Etymology tree
inherited borrowed derived
Latin pleō
Latin compleō
Catalan complir
Italian compiere
Spanish cumplir
English complement
French complément
From the same root
Latin dēpleō ← pleō
Latin expleō ← pleō
Latin impleō ← pleō
Latin oppleō ← pleō
Latin repleō ← pleō
Latin suppleō ← pleō
Romanian umple ← pleō
Latin complētiō ← compleō
Latin complētus ← compleō
Italian compimento ← compiere
Spanish cumpleaños ← cumplir
Spanish cumplimiento ← cumplir
English complementary ← complēmentum
French complémentaire ← complēmentum

Pronunciation

  • /kɔ̃.ple.mɑ̃/[1]

Forms

complément m (plural compléments)[1]

Etymology

It is borrowed from Latin complēmentum (“that which completes”), formed from compleō (“to fill up, finish, perfect”).[2][3][4] The Grand Robert and the Petit Robert date the word to 1308 but say that it was taken up again in 1690.[5][6] Bloch and Wartburg date it only from 1690 and think that the few 14th- and 16th-century examples, meaning “accomplishment”, were probably formed on the Old French verb complir (“to accomplish”).[7]

It is a doublet of compliment.[1] Littré compares Old Occitan complement.[8]

Earliest recorded meaning

Its first record, in 1308, is in Aimé du Mont-Cassin's Ystoire de li Normant, in the phrase venir a complement, with the active sense “carrying out, accomplishment”.[2][3]

Semantic evolution

The abstract sense “accomplishment”, sometimes with a shade of “perfection”, gave way to the concrete sense “what completes something”, first found in a royal ordinance of 1347 about a sufficient supply of small coin.[2][3][8] This sense was then specialised in geometry (1690), astronomy and music (1732).[3][2]

In grammar the term was brought in by Du Marsais, between 1720 and 1750, to free French grammar from the Latin model, which spoke of the régime; the TLFi finds it in Abbé Girard's grammar of 1747.[3][2] The theological phrase complément de béatitude (1732), the extra bliss of the blessed after the Last Judgement, revives the old sense of fulfilment.[3][8] Until the First World War officier de complément meant a reserve officer.[9]

Timeline

  • 1308 – First record, meaning “accomplishment”, in Aimé du Mont-Cassin.[2][3]
  • 1347 – A royal ordinance uses it for “what completes something”.[2][8]
  • 1690 – Furetière records the geometric sense.[2][9]
  • 1732 – Senses in astronomy and music, and the theological complément de béatitude.[3]
  • 1747 – Abbé Girard uses it as a grammatical term.[2]
  • 1753 – The Encyclopédie has complément d'un intervalle in music.[2]
  • 1791 – The derivative complémentaire appears.[3][7]
  • 1798 – The Académie records the grammatical sense.[9][6]

Meanings

Noun

  1. What is added, or must be added, to a thing to make it complete: un complément d'information.[6][2]
  2. The remainder of a sum: verser le complément d'une somme.[6][8]
  3. (grammar) A word or clause that completes the meaning of another word: complément d'objet direct, complément circonstanciel.[6][1]
  4. (geometry) The angle that must be added to a given angle to make a right angle.[9][8]
  5. (mathematics, optics) A complement.[1]

Word family

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k Trésor de la langue française informatisé (2004), ATILF – CNRS & Université de Lorraine, atilf.fr/tlfi; electronic version of Imbs, Paul; Quemada, Bernard, eds. (1971–1994), Trésor de la langue française, Paris: CNRS / Gallimard
  3. ^ a b c d e f g h i Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  4. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 2, 979b
  5. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  6. ^ a b c d e Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  7. ^ a b Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  8. ^ a b c d e f Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  9. ^ a b c d Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse

Related etymologies

Cite this entry

“Complément.” Etymologically, 15 Nov. 2026, etymologically.com/fr/compl%C3%A9ment. Accessed 15 Nov. 2026.

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